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The top ZIP codes in the Miami area are Key Biscayne's 33149, Coral Gables' 33146, Key Brickell's 33131 and Palmetto Bay's 33148 as of June 2015. This is based on the median household income, unemployment rate, average commute time, high school graduation rate and number of families below the poverty line. Areas with higher median household incomes and lower unemployment rates rank higher than areas with lower median household incomes and higher unemployment rates.

The wealthiest ZIP codes in Miami include 33158 in the Kendall neighborhood of Miami, 33146 in the Coral Terrace neighborhood of Miami, 33156 in Pinecrest, 33149 in Key Biscayne and 33109 in Miami Beach. The Environmental Systems Research Institute compiled this data in 2013, and it based its rankings on average household income and average net worth. ZIP code 33158 has a population of 6,719, and the median home cost is $580,000. The cost of living in this ZIP code is 81.7 percent higher than the U.S. average. The unemployment rate is 4.8 percent, and the area has experienced 4.95 percent population growth since 2000.